<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script src="https://unpkg.com/vue@next"></script>
<div id="app">
    <todo-item :title="curTitle"></todo-item>
</div>
<script>
    const vueOpt = {
        data(){
            return {
               curTitle: 'data.......'
            }
        }
    }

    const app = Vue.createApp(vueOpt);
    app.component('todo-item', {
        data(){
            return {

            }
        },

        props: ['title'],

        template: `
            <div>{{title}}</div>
        `
    })

    app.mount('#app')
</script>
</body>
</html>
